DENVER (AP) — A proposal aimed at reducing the use of solitary confinement for prisoners with serious mental illness has won unanimous approval in the state Senate.

Senators voted 34-0 for the bill to support efforts by the state Department of Corrections to set new standards for the use of solitary confinement. The measure now heads to the House.

The bill originally would have required prisons to review the mental health of prisoners in solitary confinement every 90 days. The bill was changed to simply set up an advisory board. The Department says it is already making significant changes to mental health treatment and solitary confinement.

The bill comes a year after former chief of Corrections Tom Clements was assassinated. The lone suspect was a former prisoner who was mentally ill and held in solitary confinement.

The Environmental Protection Agency said Friday it will pay $4.5 million to state, local and tribal governments for their emergency response to a mine spill that the EPA triggered, but the agency turned down $20.4 million in other requests for past and future expenses.

Ford Motor Co. is going ahead with plans to move small-car production from the U.S. to Mexico despite President-elect Donald Trump’s recent threats to impose tariffs on companies that move work abroad.